The domain name may consist of only the following: a - z, 0 - 9 and hyphen (-).

The domain name may not have a hyphen as the first and/or last character as well as the third and fourth character (simultaneously).

The domain name may not consist of only 2 letters; however, it may have a letter and a number or 2 numbers.

Example:

Registration for ab.co.uk is not allowed whereas Registration of 1c.co.uk or 23.co.uk is permitted.

The domain name may not be identical to any existing Second Level extension (CO, LTD, ME, NET, ORG, PLC, AC, GOV, MOD, MIL, NHS, POLICE, NIC, SCH) or any Second Level extension under .UK the creation of which has formally been announced by the .UK Registry. For example, Registration of org.co.uk or nhs.org.uk is not permitted.

The domain name may not be identical to any existing Top Level extension (COM, NET, UK, EU, etc.) or any Top Level extension the formal approval of which has been announced by ICANN (the regulatory body overseeing the functioning of the Internet). For example, Registration of com.co.uk or eu.org.uk is not allowed.

You may renew your .UK domain name anytime before its Expiry, upto 90 days after its Expiry.

Upon Expiry of a .UK domain name:

any service such as email, website, etc., configured for this domain name will continue to work till 30 days, post which the domain will be suspended at the registry and any associated services will stop working.

if the .UK domain name is not Renewed until 90 days, the domain name would get Deleted and made available for fresh registration.

It is important to note that there is no concept of a Redemption Grace Period in case of a .UK domain name.

Registrants who are non-trading individuals (those who do not use or plan to use their domain name for business, trade [including registration of domain names for monetization purposes] or professional transactions) can choose to opt out of having their Contact Details displayed in the Whois lookup.

This option can be enabled by the Registrant from within his Nominet control panel.

The Identity of the Registrant Contact cannot be modified for free.

Identity refers to:

Name of the Registrant Contact, if the Registrant Contact is an individual

Company Name of the Registrant Contact, if the Registrant Contact is a non-individual